FTIR spectra of thiophene in Ar and N2 matrices. Co-condensation with Cu and CO

Stella Nunziante Cesaro, Sándor Dobos, A. Stirling

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Solid state low temperature spectrum and matrix isolation spectra of thiophene in Ar and N2 matrices were recorded. The IR spectra of thiophene + CO + Cu mixtures in Ar and N2 matrices were also studied. DFT calculations revealed that only very weak thiophene-Cu complexes could be expected. We found that in pseudo gas state thiophene formed complexes with Cu0, in which Cu atom was co-ordinated to thiophene above the a C and/or β C atom of the ring. No displacement of CO group(s) of CuxCCO)y carbonyl complexes by thiophene has been observed. Neither was any interaction observed between thiophene and mono-copper type Cu(CO)y (y = 1-3) complexes, while, in Ar, for mono-carbonyls of small copper clusters of the type of Cux(CO) (x = 2), very weak interactions with thiophene were suggested.

Original languageEnglish
Pages (from-to)59-67
Number of pages9
JournalVibrational Spectroscopy
Volume20
Issue number1
Publication statusPublished - 1999

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Thiophenes
Carbon Monoxide
Condensation
Copper
Atoms
Discrete Fourier transforms
Gases

Keywords

  • Cu complexes
  • DFT calculation
  • Infrared spectrometry
  • Matrix isolation
  • Thiophene

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

FTIR spectra of thiophene in Ar and N2 matrices. Co-condensation with Cu and CO. / Cesaro, Stella Nunziante; Dobos, Sándor; Stirling, A.

In: Vibrational Spectroscopy, Vol. 20, No. 1, 1999, p. 59-67.

Research output: Contribution to journalArticle

Cesaro, Stella Nunziante ; Dobos, Sándor ; Stirling, A. / FTIR spectra of thiophene in Ar and N2 matrices. Co-condensation with Cu and CO. In: Vibrational Spectroscopy. 1999 ; Vol. 20, No. 1. pp. 59-67.
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AB - Solid state low temperature spectrum and matrix isolation spectra of thiophene in Ar and N2 matrices were recorded. The IR spectra of thiophene + CO + Cu mixtures in Ar and N2 matrices were also studied. DFT calculations revealed that only very weak thiophene-Cu complexes could be expected. We found that in pseudo gas state thiophene formed complexes with Cu0, in which Cu atom was co-ordinated to thiophene above the a C and/or β C atom of the ring. No displacement of CO group(s) of CuxCCO)y carbonyl complexes by thiophene has been observed. Neither was any interaction observed between thiophene and mono-copper type Cu(CO)y (y = 1-3) complexes, while, in Ar, for mono-carbonyls of small copper clusters of the type of Cux(CO) (x = 2), very weak interactions with thiophene were suggested.

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